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Author
- Instituto Brasileiro de Geografia e EstatÃstica54
- GfK GeoMarketing GmbH28
- Environmental Systems Research Institute (Redlands, Calif.)10
- GfK GeoMarketing GmbH 10
- Tele Atlas B.V.6
- Asian Spatial Information and Analysis Network (Australia). Australian Centre.5
- Griffith University5
- Aucott, Paula4
- Bennett, Chris4
- Great Britain Historical Geographical Information System4
- Southall, Humphrey4
- University of Portsmouth4
- DMTI Spatial Inc.3
- Armstrong, Jake H.2
- Bay Area Open Space Council2
- Conservation Lands Network2
- GreenInfo Network (Firm)2
- MassGIS2
- National Atlas of the United States2
- Sacramento County GIS2